US3804011A - Roller squeegee with resilient teeth to increase liquid penetration - Google Patents

Roller squeegee with resilient teeth to increase liquid penetration Download PDF

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Publication number
US3804011A
US3804011A US00121475A US12147571A US3804011A US 3804011 A US3804011 A US 3804011A US 00121475 A US00121475 A US 00121475A US 12147571 A US12147571 A US 12147571A US 3804011 A US3804011 A US 3804011A
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US
United States
Prior art keywords
teeth
tooth
cylindrical body
screen
contact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00121475A
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English (en)
Inventor
P Zimmer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AT216470A external-priority patent/AT296206B/de
Priority claimed from AT442270A external-priority patent/AT302231B/de
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3804011A publication Critical patent/US3804011A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/44—Squeegees or doctors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/40—Inking units
    • B41F15/42—Inking units comprising squeegees or doctors
    • B41F15/426—Inking units comprising squeegees or doctors the squeegees or doctors being magnetically attracted
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/44—Squeegees or doctors
    • B41F15/46—Squeegees or doctors with two or more operative parts

Definitions

  • This invention relates'to a roller squeegee having teeth of material being elastically deformable under the effect of contact pressure.
  • the teeth extend substantially in the longitudinal direction .of the roller squeegee.
  • Squeegee devices with roller squeegees are used, for the most part, in screen printing, whereby the roller squeegee rolls under pressure along the inside wall of a screen, thus pressing the dye onto the material to be printed.
  • Squeegee devices with roller squeegees can also be used, e.g., in coating processes, for directly applying a liquid, particularly a viscous substance, onto a surface.
  • Roller Squeegees the surfaces of which preferably consist of elastic material, and have protrusions or recesses therein, are known. These recesses may contain ye dye may have the form of straight or zigzagged grooves on the surface of the squeegee, such grooves extending parallel to the axis of the roller squeegee.
  • the essential advantage resulting from an inclination from the radial direction of the roller of the teeth lies in that much less force is required for the deformation or deflection of the teeth. This means that squeezing out of the dye from the gaps between the teeth requires less force. By reducing the force transmitted onto the surface to be printed, the material to be printed is furthermore less strongly compressed, so that penetration of the dye into the material is much facilitated.
  • the teeth of the squeegee roller such that the two flanks or side walls of each tooth are inclined relative to the radial direction are of the roller and are substantially parallel to each other.
  • the distance between adjacent teeth at the bottoms thereof is greater than the thickness of the teeth, such distance and thickness being measured in the circumferential direction of the roller squeegee. This distance is approximately equal to the height of the teeth.
  • relatively large tooth gap chambers for receiving dye or coating compound are formed, these gap members being enclosed by the teeth of the squeegee roller.
  • the teeth are tilted down as a whole by bending at their base, whereby a complete squeezing out of the dye or the coating compound is achieved.
  • the teeth preferably should run essentially parallel to the axis of the roller, the teeth may be curved and/or run helically, the angle to the crosssection of the roller, however, being less than 45.
  • FIG. 1 is a cross-section of a roller squeegee according to the invention.
  • FIG. 2 shows the use of a roller squeegee according to FIG. 1 in a rotary screen of a screen printing machine.
  • FIG. 3 illustrates another embodiment of the roller squeegee according to the invention again used in a rotary screen.
  • the roller squeegee accordingto FIGS. 1 and 2 consists of a core 1 of solid magnetizable material resistant to bending, e.g., of steel, androf a coating 2 with teeth 3 of elastically deformable material, e.g., elastomeric material.
  • the teeth extend substantially in the longitudinal direction of the roller squeegee.
  • each tooth 3 which are inclined relative to the radial direction of the roller are substantially parallel. Adjacent teeth are spaced'a distance A at the bottoms (6) of the teeth. Distance A wider than the tooth thickness B. Furthermore the height of the teeth C is approximately equal to the distance A between the teeth.
  • the teeth 3 thus define relatively large tooth chamber gaps 7.
  • the teeth are inclined with respect to the radial direction of the roller such that the bottoms thereof are leading and the tips thereof are trailing with respect to the direction of rotation 8 of the squeegee.
  • FIG. 2 The effect of the roller squeegee according to the invention is shown in FIG. 2.
  • the roller squeegee is positioned within a rotary screen 9 of a screen printing machine.
  • the mateiral 10 to be printed a piled good is continuously moved with a printing blanket 11 in the direction of arrow 12 while the rotary screen 9 rotates in the direction of arrow 13 and the roller squeegee rolls on the inside wall of the screen in the direction of rotation 8.
  • a magnet body is arranged in the base support 14, thereby causing the squeegee to be pressed against the inside wall of the screen.
  • the dye is contained in chamber 15 enclosed by walls 16, 17 and by end walls (not shown in the drawing).
  • the bottom parts of walls 16 and 17 are provided with sealing lips 18 and 19.
  • sealing lip 19 situated behind the roller squeegee has openings 20 to allow air to pass therethrough.
  • Zone 21 is thus in communication with the atmosphere and the formation therein of a vacuum is prevented. A vacuum in chamber 21 would tend to cause the dye to enter chamber 21.
  • the tooth gap chambers 7 between the teeth 3 are filled with dye.
  • the dye in these tooth gap chambers 7 is transported to zone 22 upon rotation of the roller squeegee.
  • the teeth 3 are deformed, i.e., they are bent as shown in the drawing, whereby the dye is completely pressed out of the tooth gap chambers 7 and penetrates under pressure through the openings of screen 9 into the material 10.
  • FIG. 3 shows a roller squeegee consisting of a core and a coating with teeth 3 of elastically deformable material, the teeth being inclined to the radial direction of the roller.
  • the dye is contained in chamber between the limitation walls 16, 17 which are provided at their bottom parts with sealing lips l8, l9.
  • Sealing lip 1) situated behind the roller squeeqee has openings to allow air to flow into area 21.
  • An outflow of dye through the tooth gaps 7 in the tangential direction with respect to the roller squeegee (which would be disadvantageous) is practically impossible since the tops of teeth 3 seal off the dye in the tooth gaps against the inside wall of the screen.
  • two adjacent teeth 3 are in complete contact with each other, thus completely closing the tooth gaps.
  • the effect according to the invention can also be obtained, when the roller squeegee having the inclined teeth is arranged not in a chamber 15 filled with dye, but when the supply of dye to the tooth gaps 3 is effected in some other way, e.g., (assuming the direction of rotation shown in FIGS. 1 and 2 of the roller squeegee) in that the dye may be poured into the tooth gaps of the left upper half of the roller squeegee.
  • at least one limitation wall 16 is preferably provided for the purpose of sealing off the dye.
  • the gaps between the teeth can also be filled with dye, by having the dye fed by a dye tube in a manner known per se.
  • the invention is furthermore limited neither to the magnetic contact pressure of the roller squeegee nor to the use ofa rotary screen. Even when the roller squeegee is directly rolled onto the material to be printed without interposition ofa screen which is the case when the material to be printed is coated with liquid or viscous dye, a chamber 15 as shown in H0. 2 can preferably be used for feeding the dye to the roller squeegee.
  • a printing machine for applying a viscous substance such as ink or dye under pressure onto a material comprising:
  • a perforated screen mounted to have one side thereof in contact with the material to be printed;
  • a roller squeegee comprising a generally cylindrical body the peripheral surface of which includes a plurality of teeth made of resilient material; each of said teeth, in an undeformed state, extending in a direction substantially parallel to the rotational axis of said cylindrical body; the centerline of the crosssection of each tooth, taken along a plane perpendicular to said axis, being inclined with respect to the radius of said cylindrical body intersecting said centerline at the base of said tooth; and
  • roller squeegee being mounted on the side of said screen opposite said one side, with a portion only of said plurality of teeth being in contact with said at any one time screen, said portion of said plurality of teeth being deformed into contact with said peripheral surface by contact with said screen.
  • a printing machine for applying a viscous substance such as ink or dye uneer pressure onto a material comprising:
  • a perforated screen mounted to have one side thereof in contact with the material to be printed;
  • each of said teeth in an undeformed state, extending in a direction substantially parallel to the rotational axis of said cylindrical body; the centerlineof the cross-section of each tooth, taken along a plane perpendicular to said axis, being inclined with respect to the radius of said cylindrical body intersecting said centerline at the base of said tooth, the distance between two adjacent teeth being greater than the thickness of each tooth, said distance and thickness being measured along the circumference of said cylindrical body at a radius thereof corresponding to the bottom of each tooth; said distance being substantially equal to the height of each tooth; and the thickness of each tooth at the bottom and top thereof, as measured in said plane, being substantially equal; and
  • roller squeegee being mounted on the side of said screen opposite said one side, with a portion only of said plurality of teeth being contact with said at any one time screen, said portion of said plurality of teeth being deformed into contact with said peripheral surface by contact with said screen.
  • roller squeegee comprisng a generally cylindrical

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Coating Apparatus (AREA)
  • Printing Methods (AREA)
US00121475A 1970-03-09 1971-03-05 Roller squeegee with resilient teeth to increase liquid penetration Expired - Lifetime US3804011A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT216470A AT296206B (de) 1970-03-09 1970-03-09 Rakelrolle
AT442270A AT302231B (de) 1970-05-15 1970-05-15 Rakelrolle

Publications (1)

Publication Number Publication Date
US3804011A true US3804011A (en) 1974-04-16

Family

ID=25597831

Family Applications (1)

Application Number Title Priority Date Filing Date
US00121475A Expired - Lifetime US3804011A (en) 1970-03-09 1971-03-05 Roller squeegee with resilient teeth to increase liquid penetration

Country Status (8)

Country Link
US (1) US3804011A (cg-RX-API-DMAC10.html)
JP (1) JPS548126B1 (cg-RX-API-DMAC10.html)
CH (1) CH515798A (cg-RX-API-DMAC10.html)
CS (1) CS154682B2 (cg-RX-API-DMAC10.html)
DE (1) DE2108085C3 (cg-RX-API-DMAC10.html)
FR (1) FR2084336A5 (cg-RX-API-DMAC10.html)
GB (1) GB1320470A (cg-RX-API-DMAC10.html)
NL (1) NL7103117A (cg-RX-API-DMAC10.html)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921521A (en) * 1970-07-23 1975-11-25 Zimmer Peter Squeegee device
US3949666A (en) * 1972-12-21 1976-04-13 Peter Zimmer Yieldable dyestuff applicator for screen printer
US3965817A (en) * 1973-04-03 1976-06-29 Zeki Ipek Closed squeegee applicator with flexible sides
US4023487A (en) * 1973-01-04 1977-05-17 Mitter & Co. Printing machine with printing ink dispensing arrangement
US5925187A (en) * 1996-02-08 1999-07-20 Speedline Technologies, Inc. Apparatus for dispensing flowable material
US5947022A (en) * 1997-11-07 1999-09-07 Speedline Technologies, Inc. Apparatus for dispensing material in a printer
US6324973B2 (en) 1997-11-07 2001-12-04 Speedline Technologies, Inc. Method and apparatus for dispensing material in a printer
US6453810B1 (en) 1997-11-07 2002-09-24 Speedline Technologies, Inc. Method and apparatus for dispensing material in a printer
US20090209401A1 (en) * 2008-02-20 2009-08-20 Northern Plastics Ltd. Flapper roll
US7941886B2 (en) 2003-09-19 2011-05-17 Braun Gmbh Toothbrushes
US10471705B2 (en) * 2016-10-12 2019-11-12 Boe Technology Group Co., Ltd. Printing machine
US20220340382A1 (en) * 2020-01-31 2022-10-27 Sumitomo Riko Company Limited Paper feeding roll

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATA320679A (de) * 1979-04-27 1984-05-15 Zimmer Johannes Spaltrakel
JPH0225801Y2 (cg-RX-API-DMAC10.html) * 1985-11-01 1990-07-16
US4854229A (en) * 1987-06-10 1989-08-08 E. I. Dupont De Nemours And Company Screen printer apparatus
WO1995004308A1 (de) * 1993-07-28 1995-02-09 Siemens Nixdorf Informationssysteme Aktiengesellschaft Vorrichtung zum transport von aufzeichnungsträgern in druck- oder kopiergeräten
CN110801993B (zh) * 2019-11-19 2020-10-16 苏州知瑞光电材料科技有限公司 一种冲压金属板材用涂胶系统及涂胶方法

Citations (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US945267A (en) * 1909-04-17 1910-01-04 Dick Co Ab Stencil-duplicating apparatus.
US1522653A (en) * 1924-06-28 1925-01-13 Smoleroff Joseph Method and apparatus for forming designs on fabrics
FR762627A (fr) * 1933-10-20 1934-04-14 Dispositif d'encrage pour duplicateurs rotatifs à clichés perforés
US2203974A (en) * 1937-02-08 1940-06-11 Herbert B Trix Pump
US2332411A (en) * 1939-12-27 1943-10-19 Swanson Robert Allen Pump
US2419695A (en) * 1944-10-26 1947-04-29 Mohawk Carpet Mills Inc Machine for stencilling fabric with suction
US2531036A (en) * 1946-07-26 1950-11-21 Samuel M Langston Co Apparatus for applying pattern forming material
US2616374A (en) * 1947-07-11 1952-11-04 Frank L Carson Rotary pump
US2659313A (en) * 1949-05-31 1953-11-17 Frank L Carson Rotary pump
US2664050A (en) * 1949-03-02 1953-12-29 Gen Motors Corp Domestic appliance
US2669188A (en) * 1950-03-14 1954-02-16 Patent Dev Company Pump impeller
US2753794A (en) * 1951-06-15 1956-07-10 Chambon Ltd Squeegees for screen and stencil printing
US2787026A (en) * 1953-07-03 1957-04-02 James T White Clearer roll
US2866992A (en) * 1954-10-15 1959-01-06 Ohio Commw Eng Co Road marking apparatus
US2929088A (en) * 1955-08-16 1960-03-22 Firestone Tire & Rubber Co Roll for cleaning continuous strip material
US2965020A (en) * 1955-06-24 1960-12-20 Zimmer S Successors Company Printing textiles and like materials
US3053190A (en) * 1961-04-10 1962-09-11 Minnesota Rubber Co Rotary vane type positive displacement pump
CH376036A (fr) * 1960-09-01 1964-03-15 Lucien Pardimene Jean Rouleau à peindre
US3183831A (en) * 1961-07-31 1965-05-18 Zimmer Franz Peter Rotary printing machine
US3193868A (en) * 1962-08-14 1965-07-13 Irwin B Cassidy Continuous feed paint roller
US3216349A (en) * 1963-02-21 1965-11-09 Johannes Zimmer Maschf Apparatus for treating sheet material
US3303791A (en) * 1964-08-13 1967-02-14 Itt Flexible-vaned centrifugal pump
US3368482A (en) * 1966-08-08 1968-02-13 Owens Illinois Inc Intaglio printing from stencil wrapped about cylinder
US3411931A (en) * 1964-12-03 1968-11-19 Painter Corp E Z Electrostatic method of applying flock to a paint roller sleeve
US3456584A (en) * 1967-01-09 1969-07-22 Roto Print Machine Corp Cylinder adjusting means in rotary screen printing machine
CH478667A (de) * 1967-09-04 1969-09-30 Walter Robert Hans Einrichtung zum Behandeln, insbesondere zum Bedrucken von flächenförmigem Material
US3566784A (en) * 1967-05-26 1971-03-02 Zimmer Johannes Squeegee device
US3592132A (en) * 1968-11-27 1971-07-13 Erich Weber Rotary foraminous printing machine with magnetically attracted internal inker
US3596595A (en) * 1967-08-28 1971-08-03 Peter Zimmer Screen printing machine with magnetic work support

Patent Citations (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US945267A (en) * 1909-04-17 1910-01-04 Dick Co Ab Stencil-duplicating apparatus.
US1522653A (en) * 1924-06-28 1925-01-13 Smoleroff Joseph Method and apparatus for forming designs on fabrics
FR762627A (fr) * 1933-10-20 1934-04-14 Dispositif d'encrage pour duplicateurs rotatifs à clichés perforés
US2203974A (en) * 1937-02-08 1940-06-11 Herbert B Trix Pump
US2332411A (en) * 1939-12-27 1943-10-19 Swanson Robert Allen Pump
US2419695A (en) * 1944-10-26 1947-04-29 Mohawk Carpet Mills Inc Machine for stencilling fabric with suction
US2531036A (en) * 1946-07-26 1950-11-21 Samuel M Langston Co Apparatus for applying pattern forming material
US2616374A (en) * 1947-07-11 1952-11-04 Frank L Carson Rotary pump
US2664050A (en) * 1949-03-02 1953-12-29 Gen Motors Corp Domestic appliance
US2659313A (en) * 1949-05-31 1953-11-17 Frank L Carson Rotary pump
US2669188A (en) * 1950-03-14 1954-02-16 Patent Dev Company Pump impeller
US2753794A (en) * 1951-06-15 1956-07-10 Chambon Ltd Squeegees for screen and stencil printing
US2787026A (en) * 1953-07-03 1957-04-02 James T White Clearer roll
US2866992A (en) * 1954-10-15 1959-01-06 Ohio Commw Eng Co Road marking apparatus
US2965020A (en) * 1955-06-24 1960-12-20 Zimmer S Successors Company Printing textiles and like materials
US2929088A (en) * 1955-08-16 1960-03-22 Firestone Tire & Rubber Co Roll for cleaning continuous strip material
CH376036A (fr) * 1960-09-01 1964-03-15 Lucien Pardimene Jean Rouleau à peindre
US3053190A (en) * 1961-04-10 1962-09-11 Minnesota Rubber Co Rotary vane type positive displacement pump
US3183831A (en) * 1961-07-31 1965-05-18 Zimmer Franz Peter Rotary printing machine
US3193868A (en) * 1962-08-14 1965-07-13 Irwin B Cassidy Continuous feed paint roller
US3216349A (en) * 1963-02-21 1965-11-09 Johannes Zimmer Maschf Apparatus for treating sheet material
US3303791A (en) * 1964-08-13 1967-02-14 Itt Flexible-vaned centrifugal pump
US3411931A (en) * 1964-12-03 1968-11-19 Painter Corp E Z Electrostatic method of applying flock to a paint roller sleeve
US3368482A (en) * 1966-08-08 1968-02-13 Owens Illinois Inc Intaglio printing from stencil wrapped about cylinder
US3456584A (en) * 1967-01-09 1969-07-22 Roto Print Machine Corp Cylinder adjusting means in rotary screen printing machine
US3566784A (en) * 1967-05-26 1971-03-02 Zimmer Johannes Squeegee device
US3596595A (en) * 1967-08-28 1971-08-03 Peter Zimmer Screen printing machine with magnetic work support
CH478667A (de) * 1967-09-04 1969-09-30 Walter Robert Hans Einrichtung zum Behandeln, insbesondere zum Bedrucken von flächenförmigem Material
US3592132A (en) * 1968-11-27 1971-07-13 Erich Weber Rotary foraminous printing machine with magnetically attracted internal inker

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921521A (en) * 1970-07-23 1975-11-25 Zimmer Peter Squeegee device
US3949666A (en) * 1972-12-21 1976-04-13 Peter Zimmer Yieldable dyestuff applicator for screen printer
US4023487A (en) * 1973-01-04 1977-05-17 Mitter & Co. Printing machine with printing ink dispensing arrangement
US3965817A (en) * 1973-04-03 1976-06-29 Zeki Ipek Closed squeegee applicator with flexible sides
US5925187A (en) * 1996-02-08 1999-07-20 Speedline Technologies, Inc. Apparatus for dispensing flowable material
US6324973B2 (en) 1997-11-07 2001-12-04 Speedline Technologies, Inc. Method and apparatus for dispensing material in a printer
US5947022A (en) * 1997-11-07 1999-09-07 Speedline Technologies, Inc. Apparatus for dispensing material in a printer
US6453810B1 (en) 1997-11-07 2002-09-24 Speedline Technologies, Inc. Method and apparatus for dispensing material in a printer
US6626097B2 (en) 1997-11-07 2003-09-30 Speedline Technologies, Inc. Apparatus for dispensing material in a printer
US7941886B2 (en) 2003-09-19 2011-05-17 Braun Gmbh Toothbrushes
US20090209401A1 (en) * 2008-02-20 2009-08-20 Northern Plastics Ltd. Flapper roll
US10471705B2 (en) * 2016-10-12 2019-11-12 Boe Technology Group Co., Ltd. Printing machine
US20220340382A1 (en) * 2020-01-31 2022-10-27 Sumitomo Riko Company Limited Paper feeding roll
US12103808B2 (en) * 2020-01-31 2024-10-01 Sumitomo Riko Company Limited Paper feeding roll

Also Published As

Publication number Publication date
DE2108085B2 (de) 1974-01-17
FR2084336A5 (cg-RX-API-DMAC10.html) 1971-12-17
JPS548126B1 (cg-RX-API-DMAC10.html) 1979-04-12
NL7103117A (cg-RX-API-DMAC10.html) 1971-09-13
CH515798A (de) 1971-11-30
CS154682B2 (cg-RX-API-DMAC10.html) 1974-04-30
DE2108085C3 (de) 1974-08-22
GB1320470A (en) 1973-06-13
DE2108085A1 (de) 1971-09-30

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